Bs.C. Industrial Engineering, Ms.C. Industrial Engineering, Ph.D. Operations Research.

Chairman Board of Governors, Wingate Institute for Physical Education and Sport (since 2008)  

Chairman, Alut, The Israeli Scociety for Autistics Children (since 2008)

Chairman, ICC Jerusalem International Convntion Center (since 2008) 

Vice Chairman, Knafaim Holdings Ltd. (since 2006)

Member Board of Trustees, Polytechnic University, New York (since 2006)

Chairman of the Board, Ayalon Highways Co. Ltd (since 1998)

Member Board of Directors, The Interdisciplinary Center Herzliya (since 1994). 

Chairman of the Board, El Al Israel Airlines, (2005-2008) 

Chairman, Board of Governors, AFEKA Tel-Aviv Academic College of Engineering (2006 - 2008) 

President & CEO, Knafaim – Arkia Holdings Ltd (1993 - 2006). 

Chairman of the Board, Granit Hacarmel Investments Ltd (1999 -2006).

President & CEO, Arkia Israeli Airlines Ltd. (1989 - 2005)

Professor of Information Systems, Faculty of Management, Tel Aviv University , . Main area of interest and research is the economics and management of information systems (1972-2002)

Member, Executive Committee, Tel Aviv University (1998-2002).

Chairman, LAHAV Executive Education, Faculty of Management, Tel Aviv University (2002-2005).

Honorary Doctor of Engineering Degree, Polytechnic University of New York (2005).  

Recipient of the Hugo Ramniceanu Prize in Economics for 2005, Tel Aviv University (May 2005) 

Professor Emeritus of Computers and Information Systems at the Faculty of Management, Tel Aviv University. (Since 2002)  

Member of the City Council of Tel Aviv, member of the City Executive Board and head of the Transportation Division (1998-1993)  

Author of number of books and large number of articles in leading journals.